DSTAT - Resource Monitoring

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When you want to see the information or statistics of system such as IO devices, CPU and network, dstat can be the one that is easy to utilize. dstat is a monitoring tool that shows resource utilizations in real time. It facilitates system monitoring while performing like vmstat, netstat, iostat, etc.

How to install?

Ubuntu and debian

$ sudo apt install dstat

CentOS and Fedora

$ sudo yum install dstat


$ brew install tmux

How to use?

$ dstat


The default options of dstat is -cdngy, showing the following statistics.

  • CPU usage (-c, –cpu) : CPU usage by user processes, system processes and CPU idel time. By using -C 0,1,2,3,... you can check each core state separately.
  • Disk stats (-d, –disk) : Disk usage (read and write). -D sda, dba, ... option shows each storage information separately.

  • Network stats (-c, –net) : Network throughput (send and receive). -N eth0, eth1, ... option shows each network interface stat separately.
  • Page stats (-g, –page) : Paging in/out stat

  • System stats (-y, –sys) : System status including interrupts and context switches

Useful options

  • top-cpu : shows the most expensive CPU process
  • top-cputime : shows a process using the most CPU time (in ms)
  • top-mem : shows a process using the most memory
  • top-io : shows the most expensive I/O process

Tip: the sequence of typed options match the statistics printed out. For instance, if you type dstat -dnc, dstat shows the disk, network, and CPU stats in order.



Source repository